XATP

XATP (eXtended ATP) is a digital identity framework launched in 2020 that enables secure authentication and communication between Authorized Trading Partners (ATPs) in the pharmaceutical supply chain. Built on W3C Verifiable Credentials and Decentralized Identifiers (DIDs), the system helps stakeholders comply with the Drug Supply Chain Security Act (DSCSA) requirements for trading partner verification and drug traceability.

The technical implementation includes:

• OCI-compliant digital wallets for credential management
• Privacy-first file and message sharing architecture
• Hyperledger Fabric blockchain integration
• Mobile application for drug verification via 2D barcode scanning
• Integration with existing VRS (Verification Router Service) providers
• SigBlock logging module for immutable audit trails

Notable adoption and partnerships include collaborations with major pharmaceutical companies like Amgen, Genentech, and Sanofi, as well as healthcare providers like UCLA Health. The project received validation through FDA-backed pilot programs testing supply chain security improvements. XATP maintains interoperability through membership in the Open Credentialing Initiative (OCI), Partnership for DSCSA Governance (PDG), and Healthcare Distribution Alliance (HDA), working to establish standardized approaches for digital identity in pharmaceutical supply chains.